Stick and spring for umbrellas.



Patented Aug. 23, 1910.

STICK AN IfMAGHEE.

ING FOR UMBRELLAS.

FILED MAR. 6, 1909 ERICI-I SCHUMACHER, 0F AACI-IEN, GERMANY.

STICK AND SPRING FOR UMBRELLAS.

Specification of Letters Patent.

Patented Aug. 23, 1910.

Application filed March 6, 1909. Serial No. 481,718.

To all whom it may concern:

Be it known that I, Enron SonUMAoHER, a resident of Aachen, Empire of Germany, have invented certain new and useful Improvements in Sticks and Springs for Umbrellas, of which the following is a specification.

My invention relates to umbrellas, which term includes parasols and the like, and more particularly to an improved runner spring moimted on the stick, and to the recess in which the spring is mounted as well as to the means for preventing the withdrawal of the spring from the umbrella.

One of the objects of my invention is to provide a stick for umbrellas with an indentation forming a recess, a portion of the surface of the stick being depressed to form the bottom of the recess.

Another object of my invention is to construct an umbrella runner spring in such a way that it may be located in the indentation.

Another object of myinvention is to construct an umbrella spring with a free open end with which a pin having a projection running lengthwise of the stick may engage.

My invention consists in the parts, improvements and combinations more fully pointed out hereinafter.

Referring now to the drawings which are attached to this specification and form a part thereof: Figure l is an illustration of the stick for an umbrella showing the indentation, with part of the original surface of the stick depressed so as to form the bottom of the recess. Fig. 2 is a plan view showing one embodiment of my invention with the spring arranged in the recess. Fig. 3 is a longitudinal section of the embodiment of my invention illustrated in Fig. 2. Fig. at is a cross-section of the parts illustrated in Fig. 3. Fig. 5 is an elevation showing another embodiment of my invention which utilizes a flat spring carrying a slot at one end. Fig. 6 is across-section of the umbrella stick and parts shown in Fig. 5. Fig. 7 is a top plan view of the parts illustrated in Fig. 5.

As will be observed, instead of weakening the umbrella stick and destroying the ornamental polished appearance of the stick by providing a slit of unpolished raw wood, which contrasts unfavorably in appearance consists of the material which originally formed part of the surface of the stick 1, and which has been depressed into the stick to form a recess for the spring. I prefer to depress the surface of the stick to form the floor of the recess, at the same time that I produce the holes 3, 4, thus saving labor, by providing the embossing or indenting tool which forms the recess with suitable punches for the holes in addition to the embossing rib for the recess. The shape of the indentation may be varied. If the springs have not been bent quite accurately, the indentation may be pressed in more deeply and in special cases, the embossing tool may be heated. The depth of the recess is substantially equal to the thickness of the runner spring and the maximum depth is less than half the thickness of the stick, and usually very much less.

One embodiment of my invention consists of a spring 6, which is made up of a wire having pointed ends 5, the wire being bent so as to form two parallel arms 7. The free end 8 of the wire is thus provided with an opening 9, the plane of the opening extending crosswise of the stick. Suitable means are provided for retaining the free end of the spring. As is well known, it is difficult to insert the ordinary retaining pin in an umbrella, and the use of a pin passing transversely through the stick, with a spring having an opening lengthwise of the stick, necessitates a long slot in the stick to receive the spring which can only be produced by means of expensive special tools and by the expenditure of a great deal of time. WVith other attempts to mount a spring on an umbrella stick in which a round hole is bored into the stick to receive the end of the spring, the arrangement requires a very careful adjusting and mounting of the spring, and introduces other difliculties. In accordance with my invention, I provide the spring with a free end having an opening extending crosswise of the stick, and also provide retaining means for the end of the spring which consists of a fastener or staple having a projection 10 extending lengthwise of the stick. This projection passes through the opening 9 and is preferably provided with one or more pointed feet 11, 12, which engage holes 13, 14, in the stick. In the particular embodiment of the invent-ion illustrated, the projection 10 lies in the recess 2, thus insuring a neat fit.

In the form of the invention illustrated in Figs. 5, 6 and 7, a single piece spring 18, preferably of flat metal is used, one end 14, of which is secured to the umbrella stick in the usual manner. The recess portion 15 is indented in accordance with my invention and receives the spring when it is completely depressed. The free end 16 of the spring is provided with a slot 17, so as to give an opening in the end of the spring. A fastener having a pointed foot 18 and projection 19 extending lengthwise of the stick passes through the slot 17 and is preferably lo cated within the recess 15. The round hole or pocket 20 receives the free end of the spring.

It willbe observed that in accordance with my invention, the parts can be rapidly adjusted in place, that the stick is not weakened by a deep slot, and that plenty of room is given to the free end of the spring by the hole 4, in mounting the parts. Moreover, the staple with the projection 10 may be rapidly driven in place, thus doing away with the expensive and slow crosspin construction.

Having thus described my invention, its mode of operation will be readily apparent.

It will be obvious that many changes may be made in the construction of the various parts without departing from the principle of the invention.

hat I claim and desire to secure by Letters Patent is:

1. An umbrella stick having a portion of its surface indented to provide a recess, which receives the spring which retains the runner, said stick having a separate pocket at the end of said recess, which pocket penetrates said stick transversely, the spring having a movable end,-said end carrying an opening extending crosswise of the stick, which end is adapted to enter said pocket on the depression of the spring, and a pin provided with a projection extending lengthwise of the stick and passing through the opening in the end of said spring to retain it.

2. An umbrella stick having a portion of its surface indented to provide a recess which receives the spring which retains the runner, a spring having a movable open end located in said recess, the open portion of the end extending crosswise of the stick and a pin provided with a projection extending lengthwise of the stick and passing through the open end of said spring.

3. An umbrella stick having a portion of its surface indented to provide a recess which receives the spring which retains the runner,

a spring arranged in said recess for retaining the runner, said spring consisting of a wire fastened at one place to said stick and bent to form two parallel arms with a movable open end, the plane of the opening extending crosswise of the stick and a pin provided with a projection extending lengthwise of the stick and passing through said opening.

4. An umbrella stick having a portion of its surface indented to provide a recess to receive the spring which retains the runner, a runner spring having a movable open end, said spring being arranged in said recess and a pin provided with a projection extending lengthwise of the stick and lying in said recess, said pin passing through the open end of said spring, said stick being provided with a pocket to receive the mom. able end of the spring.

5. The combination of a runner spring for an umbrella, said spring having a movable open end, the plane of the opening ex tending crosswise of the stick, and a pin provided with a projection extending lengthwise of the stick passing through said opening. v

6. The combination of an umbrella stick, a runner spring mounted thereon, said spring having a body portion and a movable open end, the plane of the opening extending crosswise of the stick and the end extending at an angle to the body portion, said stick being provided with a pocket which penetrates said stick transversely, said pocket receiving the movable end of said spring and a pin fastened to said stick and extending lengthwise thereof and through said opening in the movable end of the spring.

7. The combination of an umbrella stick, a runner spring mounted thereon, said spring having a body portion and a movable open end, the plane of the opening extending crosswise of the stick and the end extending at an angle to the body portion, said stick being provided with a round pocket which penetrates said stick transversely, said pocket receiving the movable end of said spring, and a pin fastened to said stick and extending lengthwise thereof through said opening in the movable end of said spring, said pin having a projection lying over the mouth of said pocket.

8. The combination of an umbrella stick having a portion of its surface indented to provide a shallow recess, a runner spring having the end of the body portion mounted in said recess, said spring having a movable open end, the plane of the opening extending crosswise of the stick and the end extending at an angle to the body portion, said stick being provided with a round pocket which penetrates said stick transversely, said pocket receiving the movable end of said spring, and a pin fastened to said stick extending lengthwise thereof through said opening in the end of said spring, said pin having a projection lying over the mouth of said pocket said projection being partly contained within said shallow recess.

In testimony whereof, I have signed my two subscribing witnesses.

ERICH SCHUMACHER. Witnesses:

RUDOLPH FRIcKE, SOUTHARD P. WARNER. 

